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<?php class P {} $a=new P; var_dump(array_key_exists($name, $a));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/UFiLg
function name:  (null)
number of ops:  8
compiled vars:  !0 = $a, !1 = $name
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    5     0  E >   NEW                                              $2      'P'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $2
    8     3        INIT_FCALL                                               'var_dump'
          4        ARRAY_KEY_EXISTS                                 ~5      !1, !0
          5        SEND_VAL                                                 ~5
          6        DO_ICALL                                                 
          7      > RETURN                                                   1

Class P: [no user functions]

Generated using Vulcan Logic Dumper, using php 8.0.0


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